National Geography Standards:
4: The physical and human characteristics of places
7: The physical processes that shape the patterns of Earth's surface
8: The characteristics and distribution of ecosystems on Earth's surface
14: How human actions modify the physical environment
15: How physical systems affect human systems
16: The changes that occur in the meaning, use, distribution, and importance of resources
17: How to apply geography to interpret the past
18: How to apply geography to interpret the present and plan for the future